Merge pull request #107 from davidhyman/config-project-name

make project name configurable from cli

src/towncrier/__init__.py

@@ -30,16 +30,29 @@ def _get_date():
               help=("Render the news fragments, don't write to files, "
                     "don't check versions."))
 @click.option('--dir', 'directory', default='.')
+@click.option('--name', 'project_name', default=None)
 @click.option('--version', 'project_version', default=None,
               help="Render the news fragments using given version.")
 @click.option('--date', 'project_date', default=None)
 @click.option('--yes', 'answer_yes', default=False, flag_value=True,
               help="Do not ask for confirmation to remove news fragments.")
-def _main(draft, directory, project_version, project_date, answer_yes):
-    return __main(draft, directory, project_version, project_date, answer_yes)
+def _main(
+    draft, directory,
+    project_name, project_version, project_date,
+    answer_yes
+):
+    return __main(
+        draft, directory,
+        project_name, project_version, project_date,
+        answer_yes
+    )
 
 
-def __main(draft, directory, project_version, project_date, answer_yes):
+def __main(
+    draft, directory,
+    project_name, project_version, project_date,
+    answer_yes
+):
     """
     The main entry point.
     """
@@ -79,14 +92,15 @@ def __main(draft, directory, project_version, project_date, answer_yes):
         template, config['issue_format'], fragments, definitions,
         config['underlines'][1:])
 
-    if not project_version:
+    if project_version is None:
         project_version = get_version(
             os.path.abspath(os.path.join(directory, config['package_dir'])),
             config['package'])
 
-    project_name = get_project_name(
-        os.path.abspath(os.path.join(directory, config['package_dir'])),
-        config['package'])
+    if project_name is None:
+        project_name = get_project_name(
+            os.path.abspath(os.path.join(directory, config['package_dir'])),
+            config['package'])
 
     if project_date is None:
         project_date = _get_date()

src/towncrier/test/test_cli.py

@@ -232,3 +232,55 @@ def test_no_confirmation(self):
             self.assertTrue(os.path.isfile(path))
             self.assertFalse(os.path.isfile(fragment_path1))
             self.assertFalse(os.path.isfile(fragment_path2))
+
+    def test_projectless_changelog(self):
+        """In which a directory containing news files is built into a changelog
+
+        - without a Python project or version number. We override the
+        project title from the commandline.
+        """
+        runner = CliRunner()
+
+        with runner.isolated_filesystem():
+            with open('pyproject.toml', 'w') as f:
+                f.write(
+                    '[tool.towncrier]\n'
+                    'package = "foo"\n'
+                )
+            os.mkdir('foo')
+            os.mkdir('foo/newsfragments')
+            with open('foo/newsfragments/123.feature', 'w') as f:
+                f.write('Adds levitation')
+            # Towncrier ignores .rst extension
+            with open('foo/newsfragments/124.feature.rst', 'w') as f:
+                f.write('Extends levitation')
+
+            result = runner.invoke(_main, [
+                '--name', 'FooBarBaz',
+                '--version', '7.8.9',
+                '--date', '01-01-2001',
+                '--draft',
+            ])
+
+        self.assertEqual(0, result.exit_code)
+        self.assertEqual(
+            result.output,
+            dedent("""
+            Loading template...
+            Finding news fragments...
+            Rendering news fragments...
+            Draft only -- nothing has been written.
+            What is seen below is what would be written.
+
+            FooBarBaz 7.8.9 (01-01-2001)
+            ============================
+
+
+            Features
+            --------
+
+            - Adds levitation (#123)
+            - Extends levitation (#124)
+
+            """).lstrip()
+        )